mturmon

77 ms·

781.
by mturmon 7y ago
I listened to an hour-long podcast in which Chris Hayes interviewed Alicia Garza, who co-founded Black Lives Matter (BLM). They talked specifically about this question and since you're interested, perhaps it would be one place to go t
782.
by mturmon 7y ago
Seems reminiscent of the work of Elizabeth Hellmuth Margulis, sympathetically reviewed here ( http://www.ethanhein.com/wp/2014/repetition-defines-music/ ) — I believe her work has been on HN before, but a quick
783.
by mturmon 7y ago
You have doubled down on a casual assertion ("methane is not a significant greenhouse gas") because you don't understand radiative transfer in the upper atmosphere. It's OK, radiative transfer is complex. Your options
784.
by mturmon 7y ago
This is incorrect, it’s well established that methane is a more potent GHG. See the reply here: https://news.ycombinator.com/item?id=21485738
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by mturmon 7y ago
> If you’re unsure, ask first. Good advice. Sometimes people clarify situations by talking about them, and simple active listening can provide what's needed. If sympathy is what they want, and you start offering solutions, they wil
786.
by mturmon 7y ago
The problem with leaving this to independent companies is that some of the most natural application areas are dominated by independent companies operating as a cartel -- think about credit scoring. The fact that the data and models are a n
787.
by mturmon 7y ago
OK, but that's not addressing the problem raised in the OP. Dedicated CubeSats have largely filled the smallsat niche. I would expect the Starlink mass has been carefully optimized already. There are interesting mission concepts (te
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by mturmon 7y ago
The telescope in the OP whose observations were interrupted has a 4m primary mirror. Hubble has a 2.4m primary mirror. The optical corrector lens -- just the corrector lens alone -- that is part of the camera instrument of OP has a diamete
789.
by mturmon 7y ago
Guessing, but: > ...one can multiply any eigenvector by a phase e^{iθ}... and: > As a consistency check...
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by mturmon 7y ago
What a cool project. I wonder if there's been an essay or treatise on these kind of agglomerative, ever-expanding labors of love. There are points of similarity to the installation art of Jason Rhoades ( https://www.davidzw
791.
by mturmon 7y ago
This is a weird article. The author has plenty of background and standing to comment on the topic. But he's leaving out that many of the problems the government seeks to address are bigger than what a "startup" (his word) wo
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by mturmon 7y ago
Without a lot of background (some mix of grad school, regular interaction with experts at conferences, reading journal publications) you will be easily misled by motivated reasoning, which is everywhere in this domain. People spend their c
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by mturmon 7y ago
Nearer the top of the atmosphere, the concentration of H2O is much less, and the argument breaks down, because it’s the top layers that radiate to space. Lower in the troposphere, photons are being absorbed and re-radiated, but not escapin
794.
by mturmon 7y ago
Going during the late hours that are available at the Louvre on Wednesday night is also a good strategy.
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by mturmon 7y ago
Related: the Santa Monica farmer's market crash that killed 10 and injured 63, probably due to a confused driver. Bollards have since been installed there. ( https://en.wikipedia.org/wiki/Santa_Monica_Farmers_Marke
796.
by mturmon 7y ago
Medicare Part D is one thing GWB did, and that solution was acceptable to pharma. Another thing GWB did is proposing partial privatization of Social Security. As linked nearby: https://en.wikipedia.org/wiki/Social_Secu
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by mturmon 7y ago
These are both mainstream politicians. Perry was a governor of Texas, a plausible Presidential candidate, and is now DoE Secretary. Gingrich was and is quite active politically. You're arguing in bad faith, and I will not engage any
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by mturmon 7y ago
Rick Perry in 2017: https://www.thedailybeast.com/cheats/2011/08/29/rick-perry-s... -- comparing Social Security to a Ponzi scheme Newt Gingrich in 2011: http://politicalticker.blogs.cnn.com&#
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by mturmon 7y ago
What a beautiful short take on how we build our own work, unknowingly at the time, by looking at our predecessors' work.
800.
by mturmon 7y ago
I live in LA. I'm not sure if it's just my changing age, but my perception is that, due to traffic and parking, people now do much more business locally than they did in the 1990s. This implies more biking, walking and alternati
801.
by mturmon 7y ago
The argument is that this factor can minimize the mean squared error of the variance estimate, at the cost of some bias. In general, the small correction to the lead factor depends on the fourth moment. For a Gaussian, you get 1/(n+1
802.
by mturmon 7y ago
I purchased [2], having enjoyed Nick Higham's other book (a treatise on matrix computations), and knowing how well-received [1] was. But, [2] turned out to be kind of a dud. It was not really fun to browse, and I wasn't sure who
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by mturmon 7y ago
Graham, Knuth, and Patashnik's Concrete Mathematics has the same exploratory and informal tone that the Feynman lectures have. It's more about computational math than abstract math.
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by mturmon 7y ago
This is incorrect. In general, in the US, it is required to bond a metallic water pipe system (e.g., copper or galvanized pipe) to the electrical grounding system. This is usually done near the service entrance so that the connection can
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by mturmon 7y ago
According to this thread [1], it was the 1978 code that required a dedicated grounding electrode. That's 40 years ago, but of course many houses have not been upgraded since then, and some localities might not have adopted the 1978 NEC
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by mturmon 7y ago
There's a whole story behind that: https://en.wikipedia.org/wiki/Ufer_ground This works most easily if you are pouring a concrete foundation and can incorporate the grounding electrode during the pour.
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by mturmon 7y ago
Yes, all domestic buildings in the US have their own earth ground, and this is and has been required by the NEC (National Electrical Code). Often this is a thick, 8-foot long copper rod pounded into the ground not far from the electrical pa
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by mturmon 7y ago
Some good recommendations in the article. As a resident, I have enjoyed Joe Ide and especially Walter Moseley’s writing and sense of place. Not to mention all the crime TV and movies set here, from Chinatown to the Rockford Files.
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Operation Ghost: The Dukes Never Left(welivesecurity.com)
1 points by mturmon 7y ago|0 comments
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by mturmon 7y ago
Could have been said more kindly, but the point is accurate. This reads like C code that happens to be written in Python. There is a lot of fiddly bit-twiddling operations. The main issue — besides not using 2to3 — is that / in Python

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